Try putting the camera on a stable surface and turn down the shutter speed on your camera...if you can do that with yours. Turning off the flash when you do that will help make the picture more uniform.
Actually, most cameras cameras will automatically slow down the shutter speed if you turn off the flash. Turning on the flash makes the camera change the shutter speed to a faster speed because it is expecting everything to be brighter. In my experience I try to plant the camera in a nice, solid place, then turn the shutter speed to a slow rate, turn the flash off, and pictures come out a lot better with that.
Some digital cameras are really annoying though. Throwing them against the wall doesnt usually help...tried that once with my old one...
